Evidence map›Paper›PMID 19474170›Full record

ArticleJournal of neurophysiology2009

Excitatory actions of noradrenaline and metabotropic glutamate receptor activation in granule cells of the accessory olfactory bulb.

Richard S Smith, Christopher J Weitz, Ricardo C Araneda

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.6field-weighted citation impact, top 38% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. iScience · 2023
    Article
  3. Article
  4. Article
  5. αFrontiers in cellular neuroscience · 2022
    Article
  6. Review
  7. αLearning & memory (Cold Spring Harbor, N.Y.) · 2018
    Article
  8. Experience-Dependent Plasticity in Accessory Olfactory Bulb Interneurons following Male-Male Social Interaction.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Differential Muscarinic Modulation in the Olfactory Bulb.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  13. Disruption of centrifugal inhibition to olfactory bulb granule cells impairs olfactory discrimination.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Richard S SmithDepartment of Biology, University of Maryland, College Park, Maryland 20742, USA.
Christopher J Weitz
Ricardo C Araneda
University of Maryland, College Park · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Modulation of dendrodendritic synapses by the noradrenergic system in the accessory olfactory bulb (AOB) plays a key role in the formation of memory in olfactory-mediated behaviors. We have recently shown that noradrenaline (NA) inhibits mitral cells by increasing gamma-aminobutyric acid inhibitory input onto mitral cells in the AOB, suggesting an excitatory action of NA on granule cells (GCs). Here, we show that NA (10 microM) elicits a long-lasting depolarization of GCs. This effect is mediated by activation of alpha(1)-adrenergic receptors as the depolarization is mimicked by phenylephrine (PE, 30 microM) and completely blocked by the alpha(1)-adrenergic receptor antagonist prazosin (300 nM). In addition to this depolarization, application of NA induced the appearance of a slow afterdepolarization (sADP) following a stimulus-elicited train of action potentials. Similarly, the group I metabotropic glutamate receptor (mGluR1) agonist DHPG (10-30 microM) also produced a depolarization of GCs and the appearance of a stimulus-induced sADP. The ionic and voltage dependence and sensitivity to blockers of the sADP suggest that it is mediated by the nonselective cationic conductance I(CAN). Thus the excitatory action resulting from the activation of these receptors could be mediated by a common transduction target. Surprisingly, the excitatory effect of PE on GCs was completely blocked by the mGluR1 antagonist LY367385 (100 microM). Conversely, the effect of DHPG was not antagonized by the alpha(1)-adrenergic receptor antagonist prazosin (300 nM). These results suggest that most of the noradrenergic effect on GCs in the AOB is mediated by potentiation of a basal activity of mGluR1s.

Indexed as

Action PotentialsAdrenergic alpha-1 Receptor AgonistsAdrenergic alpha-1 Receptor AntagonistsAdrenergic alpha-AgonistsAdrenergic alpha-AntagonistsAnimalsBenzoatesExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsFemaleGlycineIn Vitro TechniquesMaleMembrane PotentialsMiceMice, Inbred C57BL3,5-dihydroxyphenylglycineAdrenergic alpha-1 Receptor AgonistsAdrenergic alpha-1 Receptor AntagonistsAdrenergic alpha-AgonistsAdrenergic alpha-Antagonistsalpha-methyl-4-carboxyphenylglycineBenzoatesExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsGlycinemetabotropic glutamate receptor type 1NorepinephrinePhenylephrinePrazosinReceptors, Adrenergic, alpha-1Receptors, Metabotropic GlutamateResorcinols

Identifiers

PMID19474170
PMCPMC2724365
OpenAlexW2005179084

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.